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Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices01:28

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Parenteral drug delivery systems play a crucial role in modern therapeutics by enabling the direct administration of drugs into the systemic circulation, bypassing the gastrointestinal tract. These systems are particularly valuable for poorly absorbed oral medications that are unstable in the digestive environment or require rapid onset or sustained therapeutic levels. Delivery is achieved through intravenous, intramuscular, or subcutaneous routes, each selected based on the drug's properties...
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Modified-release drug delivery systems improve drug efficacy and minimize side effects by controlling the rate and location of drug release. These systems fall into three categories: rate-programmed, stimuli-activated, and site-targeted.Rate-programmed systems release drugs at a predetermined rate, maintaining consistent therapeutic levels and reducing fluctuations that could lead to toxicity or subtherapeutic effects. These systems use polymeric matrices, reservoir-based designs, or osmotic...
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Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...
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High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
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Physically facilitating drug-delivery systems.

Jorge I Rodriguez-Devora1, Sunny Ambure, Zhi-Dong Shi

  • 1Biomedical Engineering Program & Department of Mechanical Engineering, University of Texas at El Paso, El Paso, Texas 79968, USA.

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Summary
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Physically modulated drug delivery systems offer precise therapeutic delivery. This review covers ultrasound, electrical, magnetic, and photo-based methods for enhanced cancer treatment.

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Pharmacology

Background:

  • Drug delivery systems are crucial for targeted therapy.
  • Physical modulation offers precise control over drug release kinetics.
  • Significant advancements have been made in physical drug delivery methods over the last decade.

Purpose of the Study:

  • To review various physical methods for drug delivery.
  • To highlight applications in cancer and other disease therapies.
  • To compare the advantages and disadvantages of different physical modulation techniques.

Main Methods:

  • Review of literature on physically facilitated drug delivery systems.
  • Focus on ultrasound, electrical, magnetic, and photo-modulated delivery.
  • Discussion of current applications, improvements, and future directions.

Main Results:

  • Physically modulated systems enable targeted drug delivery to specific sites.
  • Ultrasound, electrical, magnetic, and photo methods offer distinct advantages for drug release.
  • These technologies show promise for improved therapeutic efficacy in various diseases.

Conclusions:

  • Physically modulated drug delivery systems represent a significant advancement in therapeutic strategies.
  • Continued research is expected to refine these methods for broader clinical application.
  • Future developments will likely focus on optimizing control and minimizing side effects.